diff --git a/projects/plugins/jetpack/changelog/add-site-option-jetpack-sso-require-two-step b/projects/plugins/jetpack/changelog/add-site-option-jetpack-sso-require-two-step
new file mode 100644
index 000000000000..361423984d11
--- /dev/null
+++ b/projects/plugins/jetpack/changelog/add-site-option-jetpack-sso-require-two-step
@@ -0,0 +1,4 @@
+Significance: minor
+Type: enhancement
+
+Sites API: return the "Require two-step authentication" SSO setting as the `jetpack_sso_require_two_step` site option.
diff --git a/projects/plugins/jetpack/json-endpoints/class.wpcom-json-api-get-site-endpoint.php b/projects/plugins/jetpack/json-endpoints/class.wpcom-json-api-get-site-endpoint.php
index d47666a50662..c0d807d2ec08 100644
--- a/projects/plugins/jetpack/json-endpoints/class.wpcom-json-api-get-site-endpoint.php
+++ b/projects/plugins/jetpack/json-endpoints/class.wpcom-json-api-get-site-endpoint.php
@@ -245,6 +245,7 @@ class WPCOM_JSON_API_GET_Site_Endpoint extends WPCOM_JSON_API_Endpoint {
 		'wpcom_admin_interface',
 		'wpcom_classic_early_release',
 		'jetpack_recovery_mode_status',
+		'jetpack_sso_require_two_step',
 		'apm_enabled',
 		'wpcom_ai_launchpad_enabled',
 		'wpcom_ai_launchpad_dismissed',
@@ -321,6 +322,7 @@ class WPCOM_JSON_API_GET_Site_Endpoint extends WPCOM_JSON_API_Endpoint {
 		'wpcom_admin_interface',
 		'wpcom_classic_early_release',
 		'jetpack_recovery_mode_status',
+		'jetpack_sso_require_two_step',
 		'apm_enabled',
 	);
 
@@ -1026,6 +1028,9 @@ protected function render_option_keys( &$options_response_keys ) {
 				case 'jetpack_recovery_mode_status':
 					$options[ $key ] = $site->get_jetpack_recovery_mode_status();
 					break;
+				case 'jetpack_sso_require_two_step':
+					$options[ $key ] = $site->get_jetpack_sso_require_two_step();
+					break;
 				case 'apm_enabled':
 					$options[ $key ] = $site->get_apm_enabled();
 					break;
diff --git a/projects/plugins/jetpack/sal/class.json-api-site-base.php b/projects/plugins/jetpack/sal/class.json-api-site-base.php
index 3e425d45cbe4..ad0b64730945 100644
--- a/projects/plugins/jetpack/sal/class.json-api-site-base.php
+++ b/projects/plugins/jetpack/sal/class.json-api-site-base.php
@@ -1894,4 +1894,14 @@ public function get_jetpack_recovery_mode_status() {
 		$status = get_option( 'jetpack_recovery_mode_status' );
 		return is_array( $status ) ? $status : null;
 	}
+
+	/**
+	 * Whether WordPress.com accounts must have two-step authentication to log in through SSO.
+	 *
+	 * @return bool
+	 */
+	public function get_jetpack_sso_require_two_step() {
+		/** This filter is documented in projects/packages/connection/src/sso/class-helpers.php */
+		return (bool) apply_filters( 'jetpack_sso_require_two_step', get_option( 'jetpack_sso_require_two_step', false ) );
+	}
 }
diff --git a/projects/plugins/jetpack/tests/php/json-api/Jetpack_Site_Json_Api_Endpoints_Test.php b/projects/plugins/jetpack/tests/php/json-api/Jetpack_Site_Json_Api_Endpoints_Test.php
index f9a4516ed4b7..333c367b3a2c 100644
--- a/projects/plugins/jetpack/tests/php/json-api/Jetpack_Site_Json_Api_Endpoints_Test.php
+++ b/projects/plugins/jetpack/tests/php/json-api/Jetpack_Site_Json_Api_Endpoints_Test.php
@@ -70,6 +70,40 @@ public function test_get_site() {
 		$this->assertArrayHasKey( 'jetpack_connection_active_plugins', $options );
 	}
 
+	/**
+	 * The `jetpack_sso_require_two_step` site option reports what SSO enforces: the saved
+	 * setting, or `true` when the `jetpack_sso_require_two_step` filter forces it.
+	 */
+	public function test_get_site_jetpack_sso_require_two_step_option() {
+		global $blog_id;
+
+		$editor = self::factory()->user->create_and_get(
+			array(
+				'role' => 'editor',
+			)
+		);
+
+		wp_set_current_user( $editor->ID );
+
+		$endpoint = $this->create_get_site_endpoint();
+
+		$response = $endpoint->callback( '', $blog_id );
+		$this->assertFalse( ( (array) $response['options'] )['jetpack_sso_require_two_step'] );
+
+		update_option( 'jetpack_sso_require_two_step', '1' );
+
+		$response = $endpoint->callback( '', $blog_id );
+		$this->assertTrue( ( (array) $response['options'] )['jetpack_sso_require_two_step'] );
+
+		delete_option( 'jetpack_sso_require_two_step' );
+		add_filter( 'jetpack_sso_require_two_step', '__return_true' );
+
+		$response = $endpoint->callback( '', $blog_id );
+		$this->assertTrue( ( (array) $response['options'] )['jetpack_sso_require_two_step'] );
+
+		remove_filter( 'jetpack_sso_require_two_step', '__return_true' );
+	}
+
 	/**
 	 * Test that trial flags are returned for sites that have them.
 	 *